AU2023229665A1 - Battery pack and energy storage system including the same - Google Patents
Battery pack and energy storage system including the same Download PDFInfo
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- AU2023229665A1 AU2023229665A1 AU2023229665A AU2023229665A AU2023229665A1 AU 2023229665 A1 AU2023229665 A1 AU 2023229665A1 AU 2023229665 A AU2023229665 A AU 2023229665A AU 2023229665 A AU2023229665 A AU 2023229665A AU 2023229665 A1 AU2023229665 A1 AU 2023229665A1
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- Australia
- Prior art keywords
- cell assembly
- plate
- tank
- firefighting
- battery pack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004146 energy storage Methods 0.000 title claims description 9
- 230000008961 swelling Effects 0.000 claims description 21
- 239000003795 chemical substances by application Substances 0.000 description 26
- 239000007789 gas Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 229910052744 lithium Inorganic materials 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000001629 suppression Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000006183 anode active material Substances 0.000 description 2
- 239000006182 cathode active material Substances 0.000 description 2
- WABPQHHGFIMREM-BKFZFHPZSA-N lead-212 Chemical compound [212Pb] WABPQHHGFIMREM-BKFZFHPZSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000969130 Atthis Species 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/271—Lids or covers for the racks or secondary casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/383—Flame arresting or ignition-preventing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
A battery pack according to the present invention comprises: a pack case; a cell module which is provided inside the pack case and comprises a cell assembly provided with a plurality of battery cells; a fire extinguishing tank which is disposed on a top side of the cell assembly and holds a fire extinguishing agent in an inner space; and an end plate which is disposed on at least one side among a front side and a rear side of the cell assembly and is configured to support the fire extinguishing tank.
Description
Cross Citation with Related Application(s)
This application claims the benefit of Korean Patent Application No. 10-2022-0030830
filed on March 11, 2022 with the Korean Intellectual Property Office, the entire contents of which
are incorporated herein by reference.
The present disclosure relates to a battery pack and an energy storage system including the
same, and more particularly, to a battery pack configured to ensure safety even when a thermal
event occurs, and an energy storage system including the same.
As the demands for portable electronic products such as notebooks, video cameras and
cellular phones are rapidly increased in these days, and development of electric vehicles, energy
storage batteries, robots, satellites, etc. is under active progress, numerous studies are being made
on high-performance secondary batteries capable of being repeatedly charged and discharged.
Currently, nickel-cadmium batteries, nickel-hydrogen batteries, nickel-zinc batteries,
lithium secondary batteries or the like are commercially available as secondary batteries. Among
them, lithium secondary batteries have come into the spotlight because they have advantages, for
example, hardly exhibiting memory effects in comparison with nickel-based secondary batteries
and thus being freely charged and discharged, and having very low self-discharge rate and high
energy density.
The lithium secondary battery mainly uses lithium oxide and carbonaceous material as a
cathode active material and an anode active material, respectively. The lithium secondary battery
includes an electrode assembly in which a cathode plate and an anode plate respectively coated
with the cathode active material and the anode active material are disposed with a separator interposed between them, and an exterior material which seals and receives the electrode assembly together with an electrolyte solution. Meanwhile, depending on the shape of the battery case, a lithium secondary battery may be classified into a can-type secondary battery where the electrode assembly is mounted in a metal can, and a pouch-type battery where the electrode assembly is mounted in a pouch of an aluminum laminate. In addition, depending on the shape of the metal can, the can-type secondary battery may be further classified into a cylindrical battery and a prismatic battery. Here, the pouch of the pouch-type secondary battery can be largely divided into a lower sheet and an upper sheet covering it. At this time, an electrode assembly formed by stacking and winding a cathode, an anode and a separator is housed in the pouch. Then, after housing the electrode assembly, the edges of the upper sheet and the lower sheet are sealed by heat sealing or the like. In addition, the electrode tab drawn out from each electrode may be coupled to the electrode lead, and an insulating film may be added to a portion wherein the electrode lead comes into contact with the sealing part. Thus, the pouch-type secondary battery can have the flexibility to be configured in various forms. In addition, the pouch-type secondary battery has the advantage that a secondary battery having the same capacity can be realized with a smaller volume and mass. Application fields of such lithium secondary batteries tend to gradually extend to Energy Storage System (ESS) and the like. The lithium secondary battery is made into a dense structure in which a plurality of battery cells are overlapped or stacked by themselves or in a state of being mounted in a cartridge or the like so as to provide high voltage and high current, and then is used as a cell module or a battery pack in which they are electrically connected. As an example, the energy storage system may also be composed of an assembly of home battery packs used in various types of houses (e.g., a detached house, an apartment, etc.). In such a battery pack configuration, one of the typically important issues is safety. In particular, when a thermal event occurs in one battery cell among a plurality of battery cells included in the battery pack, such an event need to be suppressed from propagating to other battery cells. If thermal propagation between battery cells is not properly suppressed, this causes a thermal event in several battery cells included in the battery pack, which may cause bigger problems such as ignition or explosion of the battery pack. Moreover, the ignition or explosion that occurs in the battery pack may cause great damage to human life or loss of property in the periphery. In particular, in the case of a home battery pack, if ignition or explosion occurs, it may harm the safety of people living in the house, and may spread into a house fire to cause more damage.
Therefore, in the case of such a battery pack, a configuration capable of appropriately controlling
the above-mentioned thermal event is required.
In particular, in the case of such a battery pack, it is desired to ensure that the configuration
for controlling the above thermal event can be safely fixed within the battery pack, thereby more
stably controlling the thermal event.
[Technical Problem]
The present disclosure has been designed to solve the above problems, and an object
thereof is to provide a battery pack having an improved structure so as to properly control a thermal
event which occurs inside the battery pack, and an energy storage system including the same.
However, the objects and advantages of the present disclosure are not limited to those
described above, and other objects and advantages not mentioned above will be clearly understood
by those skilled in the art from the following description.
[Technical Solution]
In order to achieve the above object, according to an embodiment of the present disclosure,
there is provided a battery pack comprising: a pack case, a cell module provided inside the pack
case and including a cell assembly having a plurality of battery cells, a firefighting tank disposed
on an upper side of the cell assembly and holding a fire extinguishing agent in an internal space,
and an end plate disposed on at least one of the front and rear sides of the cell assembly and
configured to support the firefighting tank.
Preferably, the end plates may be disposed on both sides at the front and rear of the cell
assembly, and may be configured to press at least one of front and rear surfaces of the cell assembly
when swelling of the battery cell occurs.
Preferably, the firefighting tank may be configured to discharge the fire extinguishing
agent between both sides of the bottom part toward the cell assembly when heat is applied from
the cell assembly, and the end plates may support both sides of the bottom part of the firefighting
tank in a vertical direction.
Preferably, a fixing part having a predetermined area and making surface contact with both
sides of the bottom part of the firefighting tank may be provided on the upper side of the end plate.
Preferably, the fixing part may be bent from an upper end of the end plate and formed to
extend to a predetermined length along an outside direction of the cell assembly.
Preferably, the end plate may include a first plate disposed on the front surface of the cell
assembly and supporting the front side of the firefighting tank in a vertical direction, and a second
plate disposed on the rear surface of the cell assembly and supporting the rear side of the
firefighting tank in the vertical direction.
Preferably, the fixing part may include a first fixing part that is formed to extend from the
upper end of the first plate in the front/rear direction of the cell assembly, and is coupled to the
front side of the firefighting tank in the vertical direction.
Preferably, the first fixing part may make surface contact with the front side of the
firefighting tank.
Preferably, the fixing part may further include a second fixing part that is formed to extend
from the upper end of the second plate in the front/rear direction of the cell assembly, and is
coupled to the rear side of thefirefighting tank in the vertical direction.
Preferably, the second fixing part may make surface contact with the rear side of the
firefighting tank.
Preferably, the pack case may include a guide protrusion that is formed to protrude from
the bottom part of the pack case in a vertical direction, and is provided apart from the front surface
and the rear surface of the cell assembly at a specified interval in the front/rear direction of the cell
assembly.
Preferably, the guide protrusion may be disposed on the opposite side of the cell assembly
with the end plate interposed therebetween.
Preferably, the guide protrusion may include a first protrusion formed apart from the front
surface of the cell assembly at a specified interval in the front/rear direction of the cell assembly,
and a second protrusion formed apart from the rear surface of the cell assembly at a specified
interval in the front/rear direction of the cell assembly.
Preferably, the first plate may be disposed between the first protrusion and the front surface
of the cell assembly in the front/rear direction of the cell assembly, and configured to press the
front surface of the cell assembly when swelling of the battery cell occurs.
Preferably, the second plate may be disposed between the second protrusion and the rear
surface of the cell assembly in the front/rear direction of the cell assembly, and configured to press
the rear surface of the cell assembly when swelling of the battery cell occurs.
Preferably, the battery pack may further comprise a connection part that connects the first
plate and the second plate in the front/rear direction of the cell assembly.
Preferably, the connection part may include a first connection member that connects an
upper end of the first plate and an upper end of the second plate in the front/rear direction of the
cell assembly, and is disposed in plural numbers along a left/right direction of the cell assembly,
and a second connection member that connects the lower end of the first plate and the lower end
of the second plate in the front/rear direction of the cell assembly, and is disposed in plurality along
the left/right direction of the cell assembly.
According to another embodiment of the present disclosure, there is provided an energy
storage system comprising at least one battery pack as described above.
[Advantageous Effects]
According to some embodiments of the present disclosure, the firefighting tank can be
more stably fixed within the pack case through the end plate to quickly control a thermal event
inside the pack case, and at the same time, effectively prevent a swelling phenomenon of the cell
module.
Also, the battery pack according to some embodiments of the present disclosure does not
require an additional structure for supporting the firefighting tank, apart from the structure for
preventing swelling, thereby securing cost competitiveness while increasing the efficiency of the manufacturing process, and realizing a compact structure with higher energy efficiency.
In addition, several other advantageous effects can be further achieved according to various
embodiments of the present disclosure. Such various effects of the present disclosure will be
described in detail in respective embodiments, but as for effects that can be easily understood by
those skilled in the art, the description thereof will be omitted.
The following drawings attached thereto illustrate preferred embodiments of the invention,
and serve to further understand the technical idea of the invention together with the contents of the
invention described above. The disclosure should not be construed as being limited only to the
embodiments as illustrated in the drawings.
FIG. 1 is a diagram showing the overall shape of a battery pack according to an
embodiment of the present disclosure;
FIG. 2 is a front view of the battery pack of FIG. 1;
FIG. 3 is a top view of the battery pack of FIG. 1;
FIG. 4 is a diagram showing a detailed structure of the battery pack of FIG. 1;
FIG. 5 is a diagram showing the overall shape of an end plate included in the battery pack
ofFIG.1;
FIG. 6 is a front view of the end plate of FIG. 5;
FIG. 7 is a top view of the end plate of FIG. 5;
FIG. 8 is a side view of the end plate of FIG. 5;
FIG. 9 is a side view which projects and shows the inside of the battery pack of FIG. 1;
FIG. 10 is a top view which projects and shows the inside of the battery pack of FIG. 1;
FIG. 11 is a diagram showing an end plate according to another embodiment of the present
disclosure;
FIG. 12 is a diagram showing an end plate according to another embodiment of the present
disclosure; and
FIG. 13 is a side view which projects and shows the inside of the battery pack to which the
end plate of FIG. 12 is applied.
Hereinafter, preferred embodiments of the present invention will be described in detail with
reference to the accompanying drawings. Prior to the description, it should be understood that the
terms or words used in the specification and the appended claims should not be construed as being
limited to general and dictionary meanings, but interpreted based on the meanings and concepts
corresponding to technical aspects of the invention on the basis of the principle that the inventor
is allowed to define terms appropriately for the best explanation.
Therefore, the embodiments described herein and the configurations shown in the drawings
are only most preferable embodiments of the present disclosure and do not represent the entire
spirit of the present disclosure, so it should be appreciated that there may be various equivalents
and modifications that can replace the embodiments and configurations at the time at which the
present application is filed.
FIG. 1 is a diagram showing the overall shape of a battery pack 10 according to an
embodiment of the present disclosure. FIG. 2 is a front view of the battery pack 10 of FIG. 1.
FIG. 3 is a top view of the battery pack 10 of FIG. 1. FIG. 4 is a diagram showing a detailed
structure of the battery pack 10 of FIG. 1. At this time, illustration of the second cover 120, which
will be described later with reference to FIG. 4, is omitted.
In some embodiments of the present disclosure, the X-axis direction shown in the drawing
may mean the front/rear direction, the Y-axis direction may mean the left/right direction
perpendicular to the X-axis direction in the horizontal plane (XY plane), and the Z-axis direction
may mean a vertical direction perpendicular to both the X-axis direction and the Y-axis direction.
Referring to FIGS. 1 to 4, the battery pack 10 according to an embodiment of the present
disclosure may include a pack case 100, a cell module 200, a firefighting tank 300 and an end plate
400.
The pack case 100 may house the cell module 200 therein. For this purpose, the pack case
100 may be provided with a housing space for housing the cell module 200. Such a pack case
100 will be discussed more specifically in the related description below.
The cell module 200 is provided in the inside of the pack case 100 and may include a cell
assembly 210.
The cell assembly 210 may include one or more battery cells. Here, each battery cell may
mean a secondary battery. The battery cell may be provided as a pouch-type battery cell, a
cylindrical battery cell, or a prismatic battery cell. As an example, the battery cell may be a pouch
type battery cell.
Such battery cells may be arranged to be stacked in one direction and electrically connected
to each other. Each of the battery cells may include a pair of electrode leads 212. At this time,
the pair of electrode leads 212 of the plurality of battery cells may be formed on both sides in the
left/right direction of the cell assembly 210.
The firefighting tank 300 is disposed on the upper side of the cell assembly 210 and may
hold a fire extinguishing agent therein. Such a firefighting tank 300 has an inner space, and can
hold a fire extinguishing agent in such an inner space. As an example, thefire extinguishing agent
may be a liquid such as water, salt water and antifreeze. In addition, the firefighting tank 300 may
be housed inside the pack case 100.
The firefighting tank 300 is configured in a box shape with an opened upper part, and can
provide a space in which the fire extinguishing agent can be housed.
According to some embodiments of the present disclosure, the fire extinguishing agent is
discharged from the firefighting tank 300 disposed above the cell assembly 210, so that a thermal
event of the cell assembly 210 can be more easily controlled. In particular, thefire extinguishing
agent discharged from the firefighting tank 300 can easily move downward by gravity. Therefore,
the heat or fire suppression of the cell assembly 210 can be made more easily by the fire
extinguishing agent.
The end plate 400 may be disposed on at least one of the front side and the rear side of the
cell assembly 210. The end plate 400 may be configured to support thefirefighting tank 300.
The end plate 400 allows the firefighting tank 300 to be stably fixed inside the pack case
100. Thereby, the fire extinguishing agent is stably discharged from the firefighting tank 300
toward the cell assembly 210, so that the heat or fire of the cell assembly 210 can be suppressed
more easily.
At this time, the end plate 400 may be disposed only on the front side or the rear side of
the cell assembly 210. Alternatively, the end plate 400 may be disposed on the front side and the
rear side of the cell assembly 210, respectively.
In the present embodiment, it will be described that the end plate 400 is illustratively
provided as a pair.
The end plate 400 is disposed between the pack case 100 and the cell assembly 210 in the
front/rear direction of the cell assembly 210, and may be configured to press at least one of the
front surface and the rear surface when swelling of the battery cell occurs.
That is, the end plate 400 may be disposed on both sides at the front and rear of the cell
assembly 210, and may be configured to press at least one of the front surface and the rear surface
of the cell assembly 210 when swelling of the battery cell occurs.
By pressing the end plate 400 in this way, a swelling phenomenon that may occur in the
cell module 200 inside the pack case 100 can be effectively suppressed.
Ultimately, through the end plates 400, it is possible to prevent swelling that may occur in
the cell module 200, and at the same time, stably fix the firefighting tank 300 inside the pack case
100. That is, in the present embodiment, since the end plate 400 supports both the firefighting
tank 300 and the cell module 200, no additional fastening parts or fastening structures are required
to fix or support these members. Thereby, in the present embodiment, there can be provided a
battery pack 10, which can increase the efficiency of the assembly process of the battery pack 10
through the end plate 400, can ensure cost competitiveness, and realize a compact structure with
higher energy efficiency.
The firefighting tank 300 may be configured to discharge the fire extinguishing agent to
the cell assembly 210 side between both sides of the bottom part when heat is applied from the cell assembly 210. Here, the end plate 400 may support both sides of the bottom part of the firefighting tank 300 in the vertical direction.
By supporting both sides of the bottom part of the firefighting tank 300 by the end plate
400, the firefighting tank 300 can be more stably supported even when the fire extinguishing agent
is discharged from the firefighting tank 300, and the leakage of the fire extinguishing agent to the
outside of the bottom part of the firefighting tank 300 can also be effectively prevented, so that the
injection efficiency of the fire extinguishing agent into the cell assembly 100 can be increased.
Meanwhile, fixing parts 412 and 422 having a predetermined area and making surface
contact with both sides of the bottom part of the firefighting tank 300 may be provided on the
upper side of the end plate 400.
The firefighting tank 300 can be supported more stably by such fixing parts 412 and 422.
Further, the fixing parts 412 and 422 may be bent from an upper end of the end plate 400
and formed to extend to a predetermined length along an outside direction of the cell assembly.
That is, the end plate 400 may have a substantially L-shaped structure.
According to such configuration of the present disclosure, the contact area between both
sides of the bottom part of the firefighting tank 300 and the end plate 400 is increased, so that the
firefighting tank 300 can be supported more stably.
Below, the end plate 400 will be described in more detail.
FIG. 5 is a diagram showing the overall shape of an end plate 400 included in the battery
pack 10 of FIG. 1, FIG. 6 is a front view of the end plate 400 of FIG. 5. FIG. 7 is a top view of
the end plate 400 of FIG. 5. FIG. 8 is a side view of the end plate 400 of FIG. 5. FIG. 9 is a side
view which projects and shows the inside of the battery pack 10 of FIG. 1.
Referring to FIGS. 4 to 9, the end plate 400 may include a first plate 410 and a second plate
420.
The first plate 410 is disposed on the front surface of the cell assembly 210, and can support
the front side of the firefighting tank 300 in the vertical direction.
Meanwhile, the aforementioned fixing parts 412 and 422 may include the first fixing part
412. Further, the first plate 410 may include the first fixing part 412.
The first fixing part 412 may be formed to extend from an upper end of the first plate 410
in the front/rear direction of the cell assembly 210. Further, the first fixing part 412 may be coupled
to the front side of the firefighting tank 300 in a vertical direction. And, the first fixing part 412
may make surface contact with the front side of the firefighting tank 300. By the first fixing part
412, the contact area between the front side of the firefighting tank 300 and the first plate 410 is
increased, so that the firefighting tank 300 can be stably supported.
At this time, the coupling between the first fixing part 412 and the firefighting tank 300
may be made by a separate fastening member (not shown). Alternatively, the coupling between
the first fixing part 412 and the firefighting tank 300 may also be made by a separate adhesive
member (not shown).
The second plate 420 is disposed on the rear surface of the cell assembly 210, and may
support the rear side of the firefighting tank 300 in the vertical direction.
Meanwhile, the aforementioned fixing parts 412 and 422 may further include a second
fixing part 422. And, the second plate 420 may include the second fixing part 422.
The second fixing part 422 may be formed to extend from an upper end of the second plate
420 in the front/rear direction of the cell assembly 210. Further, the second fixing part 422 may
be coupled to the rear side of the firefighting tank 300 in a vertical direction. And, the second
fixing part 422 may make surface contact with the rear side of the firefighting tank 300. Through
the second fixing part 422, the contact area between the rear side of the firefighting tank 300 and
the second plate 420 is increased, so that the firefighting tank 300 can be stably supported.
At this time, the coupling between the second fixing part 422 and the firefighting tank 300
may be made by a separate fastening member (not shown). Alternatively, the coupling between the second fixing part 422 and the firefighting tank 300 can be made by a separate adhesive member (not shown).
Due to the configuration of the aforementioned end plate 400, thefirefighting tank 300 can
be stably fixed within the pack case 100. Thereby, thefire extinguishing agent is stably discharged
from the firefighting tank 300 toward the cell assembly 210, so that the heat or fire suppression of
the cell assembly 210 can be made more easily.
FIG. 10 is a top view which projects and shows the inside of the battery pack 10 of FIG. 1.
At this time, illustration of the firefighting tank 300 described above with reference to FIG. 10 is
omitted.
Referring to FIGS. 4 to 10 , the aforementioned pack case 100 may further include a guide
protrusion 150.
The guide protrusion 150 is formed to protrude from the bottom part of the pack case 100
in a vertical direction, and is provided apart from the front surface and the rear surface of the cell
assembly at a specified interval in the front/rear direction of the cell assembly 210. Here, the guide
protrusion 150 may be provided integrally with the bottom part of the pack case 100, or may be
mounted as a separate member.
Such a guide protrusion 150 may be disposed on the opposite side of the cell assembly 210
with the end plate 400 interposed therebetween.
Specifically, the guide protrusion 150 may include a first protrusion 152 and a second
protrusion 154.
The first protrusion 152 may be formed apart from the front surface of the cell assembly
210 at a specified interval in the front/rear direction of the cell assembly 210.
At this time, the first plate 410 is disposed between the first protrusion 152 and the front
surface of the cell assembly 210 in the front/rear direction of the cell assembly 210, and may be configured to press the front surface of the cell assembly 210 when swelling of the battery cell occurs.
Specifically, the first plate 410 may be configured to press the front surface of the cell
assembly 210 when swelling of the battery cell occurs, in a state in which the cell assembly 210 is
supported in the front/rear direction by the first protrusion 152. Accordingly, the first plate 410
can effectively suppress a swelling phenomenon of the cell module 200.
The second protrusion 154 may be formed apart from the rear surface of the cell assembly
210 at a specified interval in the front/rear direction of the cell assembly 210.
At this time, the second plate 420 is disposed between the second protrusion 154 and the
rear surface of the cell assembly 210 in the front/rear direction of the cell assembly 210, and may
be configured to press the rear surface of the cell assembly 210 when swelling of the battery cell
occurs.
Specifically, the second plate 420 may be configured to press the rear surface of the cell
assembly 210 when swelling of the battery cell occurs, in a state in which the cell assembly 210 is
supported in the front/rear direction by the second protrusion 154. Accordingly, the second plate
420 can effectively suppress a swelling phenomenon of the cell module 200.
Similar to the configuration described above, the end plate 400 can more stably press the
front surface and the rear surface of the cell assembly 210, in a state in which the cell assembly
210 is supported in the front/rear direction by the guide protrusion 150.
Accordingly, the swelling phenomenon that may occur in the cell module 200 can be more
effectively suppressed. Further, since the end plate 400 is stably supported in the front/rear
direction of the cell assembly 210 by the configuration of the guide protrusion 150 described
above, the firefighting tank 300 can be more stably fixed within the pack case 100 by the end plate
400.
Accordingly, the fire extinguishing agent is stably discharged from the firefighting tank
300 toward the cell assembly 210, so that the heat or fire suppression of the cell assembly 210 can
be made more easily.
Referring back to FIGS. 4 to 10, the battery pack 10 may further include a connection part
500.
The connection part 500 may connect the first plate 410 and the second plate 420 in the
front/rear direction of the cell assembly 210. As an example, the connection part 500 may be a
long bolt extending in the front/rear direction of the cell assembly 210. Accordingly, the first plate
410 and the second plate 420 may be interconnected.
Below, the connection part 500 will be described in more detail.
The connection part 500 may include a first connection member 510 and a second
connection member 520.
The first connection member 510 may connect an upper end of the first plate 410 and an
upper end of the second plate 420 in the front/rear direction of the cell assembly 210. At this time,
the first connection members 510 may be disposed in plural numbers along the left/right direction
of the cell assembly 210 .
The second connection member 520 may connect the lower end of the first plate 410 and
the lower end of the second plate 420 in the front/rear direction of the cell assembly 210. At this
time, the second connection members 520 may be disposed in plural numbers along the left/right
direction of the cell assembly 210.
In this manner, the connection part 500 can connect the upper and lower ends of the first
plate 410 and the second plate 420 at the same time. Thus, the first plate 410 and the second plate
420 can be stably connected to each other in the front/rear direction of the cell assembly 210.
Thereby, the front and back surfaces of the cell assembly 210 can be pressed more stably
and effectively by the end plates 400. Further, since the first plate 410 and the second plate 420 of the end plate 400 are stably connected to each other by the configuration of the connection part
500 described above, the firefighting tank 300 can be more stably fixed within the pack case 100
by the end plate 400.
Thereby, the fire extinguishing agent is stably discharged from the firefighting tank 300
toward the cell assembly 210, so that the heat or fire suppression of the cell assembly 210 can be
made more easily.
Meanwhile, the cell assembly 210 may be disposed between the first connection member
510 and the second connection member 520 in the vertical direction. Therefore, interference
between the cell assembly 210 and the connector part 500 can be prevented.
FIG. 11 is a diagram showing an end plate 402 according to another embodiment of the
present disclosure.
Since the end plate 402 according to the present embodiment is similar to the end plate 400
of the previous embodiment, duplicate description of the components substantially identical or
similar to those of the previous embodiment will be omitted, and the following discussion focuses
on the differences from the previous embodiment.
Referring to FIG. 11, the end plate 402 may include a first plate 410 and a second plate
420.
The first plate 410 may include a first fixing part 414, and the second plate 420 may include
a second fixing part 424.
The first fixing part 414 may be formed to extend from the upper end of the first plate 410
in the front/rear direction of the cell assembly 210. The firstfixing part 414 may be configured to
extend long in the left/right direction of the cell assembly 210 from the upper end of the first plate
410.
Further, the second fixing part 424 may be formed to extend from an upper end of the
second plate 420 in the front/rear direction of the cell assembly 210. The second fixing part 424 may be configured to extend long in the left/right direction of the cell assembly 210 from the upper end of the second plate 420.
In such a case, the contact area between the first plate 410, the second plate 420 and the
firefighting tank 300 can be further increased. Thereby, the firefighting tank 300 can be more
stably fixed to the upper side of the end plate 402.
FIG. 12 is a diagram showing an end plate 404 according to another embodiment of the
present disclosure. FIG. 13 is a side view which projects and shows the inside of the battery pack
10 to which the end plate 404 of FIG. 12 is applied.
Since the end plate 404 according to the present embodiment is similar to the end plate 400
of the previous embodiment, duplicate description of the components substantially identical or
similar to those of the previous embodiment will be omitted, and the following discussion focuses
on the differences from the previous embodiment.
Referring to FIGS. 12 and 13, the end plate 404 may include a first plate 410 and a second
plate 420.
The first plate 410 may include a first fixing part 416, and the second plate 420 may include
a second fixing part 426.
The first fixing part 416 may include a first horizontal plate 4162 and a first vertical plate
4164.
The first horizontal plate 4162 may be formed to extend from an upper end of the first plate
410 in the front/rear direction of the cell assembly 210. The first horizontal plate 4162 may be
coupled to the front side of the firefighting tank 300 in the vertical direction.
The first vertical plate 4164 may be formed to extend in the vertical direction from an end
of the first horizontal plate 4162. The first vertical plate 4164 may support the front side surface
of the firefighting tank 300 in the front/rear direction of the cell assembly 210.
Further, the second fixing part 426 may include a second horizontal plate 4262 and a
second vertical plate 4264.
The second horizontal plate 4262 may be formed to extend from an upper end of the second
plate 420 in the front/rear direction of the cell assembly 210. The second horizontal plate 4262
may be coupled to the rear side of the firefighting tank 300 in the vertical direction.
The second vertical plate 4264 may be formed to extend in the vertical direction from an
end of the second horizontal plate 4262. The second vertical plate 4264 may support the rear side
surface of the firefighting tank 300 in the front/rear direction of the cell assembly 210.
According to this embodiment of the present disclosure, the end plate 404 can support the
firefighting tank 300 not only in the vertical direction but also in the front/rear direction, so that
the firefighting tank 300 can be more stably fixed within the pack case 100.
The aforementioned pack case 100 may include a first cover 110, a second cover 120 and
a gas flow passage 130.
Referring again to FIGS. 1 to 3, 9 and 10, the first cover 110 may be provided with a
housing space for housing the cell module 200. Such a first cover 110 may be coupled with a
second cover 120, which will be described later, to thereby house the cell module 200 therein.
Further, the bottom surface of the first cover 110 may constitute the bottom part of the pack case
100.
In one embodiment, the aforementioned guide protrusion 150 is provided on the first cover
110, and may be provided on the bottom surface of the first cover 110 constituting the bottom part
of the pack case 100.
The second cover 120 maybe coupled to the first cover 110 in a vertical direction. Atthis
time, the second cover 120 may be disposed on the upper part of thefirst cover110.
In one embodiment, the upper part of the firefighting tank 300 may be covered by the
second cover 120 of the pack case 100, as shown in FIG. 9.
Further, when the first cover 110 and the second cover 120 are coupled in the vertical
direction, the front surface, the rear surface, the left side surface and the right side surface of the
pack case 100 may be formed as shown in FIG. 1. As an example, the coupling between thefirst
cover 110 and the second cover 120 can be made by a plurality of fastening members (not shown).
Meanwhile, in the embodiment of the present disclosure, the pack case 100 may not be
configured separately into the first cover 110 and the second cover 120, but may be configured
integrally.
The gas flow passage 130 is for guiding air inflow into the pack case 100 and gas discharge
inside the pack case 100, and may be provided in the second cover 120.
The gas flow passage 130 may include an air inflow part 132 and a gas discharge part 134.
The air inflow part 132 may be formed on a rear side of the second cover 120. At this time,
the air inflow part 132 may allow external air to flow into the pack case 100.
The gas discharge part 134 may be formed on the front side of the second cover 120. At
this time, the gas discharge part 134 may allow the gas inside the pack case 100 to be discharged
to the outside.
Meanwhile, the air inflow part 132 and the gas discharge part 134 may be formed with a
mesh structure. At this time, through the air inflow part 132 having the mesh structure, foreign
matter of a predetermined size is prevented from entering inside the pack case 100, and the air can
smoothly flow into the inside of the pack case 100. Similarly, through the gas discharge part 134
having the mesh structure, the foreign matter is prevented from entering inside the pack case 100,
and venting gas generated in the inside of the pack case 100 can be discharged to the outside of
the pack case 100.
Further, the air inflow part 132 allows air to flow smoothly into the pack case 100, thereby
preventing negative pressure from occurring inside the firefighting tank 300. Further, the air
inflow part 132 can prevent a decrease in the injection speed or a decrease in the injection amount of the fire extinguishing agent into the cell module 200, which is caused by the generation of negative pressure inside the firefighting tank 300.
The cell module 200 may further include a busbar frame 220.
The busbar frame 220 is for sensing the voltage of the cell assembly 210, and may be
provided as a pair to support one side surface and the other side surface of the cell assembly 210
in the left/right direction.
As an example, the busbar frame 220 may include a first busbar frame 222 and a second
busbar frame 224.
The first busbar frame 222 may support one side surface (e.g., left side surface) in the
left/right direction of the cell assembly 210. In addition, a busbar (not shown) provided in the
first busbar frame 222 may be connected to an electrode lead 212 formed on one side surface in a
left/right direction of the cell assembly 210.
The second busbar frame 224 may support the other side surface (e.g., right side surface)
in the left/right direction of the cell assembly 210. In addition, the busbar (not shown) provided
in the second busbar frame 224 may be connected to the electrode lead 212 formed on the other
side surface in the left/right direction of the cell assembly 210.
The firefighting tank 300 may be configured such that at least a portion thereof is melted
by heat applied from the cell assembly 210 to discharge the fire extinguishing agent. For example,
in FIG. 4, the portion indicated by A of the firefighting tank 300 may be melted by heat. Then,
through the portion melted in this way, the fire extinguishing agent may be discharged between
both sides of the bottom part of the firefighting tank 300 towards the cell assembly 210. For this
purpose, at least a portion of the firefighting tank 300 may be made of a material that can be melted
by heat applied from the cell assembly 210. As an example, the firefighting tank 300 may be
entirely made of a plastic material.
Meanwhile, in the battery pack 10 of the present disclosure, the aforementioned pack case
100 may be configured to be stacked in the vertical direction. That is, the battery pack 10 of the
present disclosure may be configured by stacking different pack cases 100 in the vertical direction.
In this case, since each pack case 100 has a cell module 200 therein, it is possible to realize battery
packs 10 with various capacities depending on the number of stacked pack cases 100. And, as
described above, since each pack case 100 has a firefighting tank 300 therein, and thus, when a
thermal event occurs in the cell assembly 210 inside some pack case 100, this thermal event can
be prevented from being transferred to the cell assembly 210 inside the other pack case 100.
The firefighting tank 300 may illustratively include the base plate 310 and the side wall
320. At this time, the base plate 310 may constitute the bottom part of the firefighting tank 300.
Here, the side wall 320 may be configured to protrude upward from the comer of the base
plate310. Further, the firefighting tank 300 has a bottom and aside part formed by the base plate
310 and the side wall 320, thereby capable of forming a space in which the fire extinguishing agent
is housed. At this time, the upper part of the firefighting tank 300 may be sealed by the pack case
100. Alternatively, the firefighting tank 300 may separately include an upper cover configured to
seal the fire extinguishing agent-housing space thereon.
The base plate 310 of such a firefighting tank 300 may be formed to have different
thicknesses in the vertical direction for each portion. In particular, the base plate 310 may be
configured to have a thin thickness at a specific portion, as shown by a section A in FIG. 4. As an
example, the base plate 310 may be configured in the form of a plastic injection molding having a
thickness of 1 mm as a whole, and a portion indicated by A may have a thickness of 0.5 mm.
In this manner, a thinly formed portion of the base plate 310 may function as a fragile part.
That is, when a thermal event such as thermal runaway occurs in the cell assembly 210 and heat
is applied to the fragile part, the fragile part may first be broken. And, when the fragile part is
broken, the fire extinguishing agent housed in the firefighting tank 300 may be discharged toward
the cell assembly 210 through the broken fragile part. Thereby, a configuration for injecting the
fire extinguishing agent into the cell assembly 210 can be realized with a simpler structure, and
the fire extinguishing agent can be injected into the cell assembly 210 more quickly.
Referring to FIGS. 4 to 9, at least a portion of the base plate 310 constituting the bottom
part of the firefighting tank 300 may protrude downward from the base plate 310. Bywayof
example, a portion of the base plate 310 including the fragile part indicated by A in FIG. 4 may protrude downward from the base plate 310. In this manner, at least a portion of the base plate 310 may be disposed between the first plate 410 and the second plate 420 in the front/rear direction of the cell assembly 210. According to such a configuration of the invention, the firefighting tank 300 can be prevented from moving forward and backward by the end plate 400. Further, according to the configuration of the present disclosure, a portion where the fire extinguishing agent is discharged to the cell assembly 210 from the firefighting tank 300 (a portion where a fragile part is formed) may be disposed between the first plate 410 and the second plate 420. Thereby, the fire extinguishing agent can be completely discharged toward the cell assembly 210 from the firefighting tank 300, so that heat or fire suppression of the cell assembly 210 can be more easily made. As discussed above, according to some embodiments of the present disclosure, the firefighting tank 300 is more stably fixed in the pack case 100 through the end plates 400, 402, and 404, so that a thermal event inside the pack case 100 can be quickly controlled, and at the same time, swelling of the cell module 200 can be effectively prevented. In addition, since the battery pack 10 according to the embodiment of the present disclosure does not require an additional structure for supporting the firefighting tank 300, apart from a structure for preventing swelling, it is possible to secure cost competitiveness while increasing the efficiency of the manufacturing process, and realize a compact structure with higher energy efficiency. Meanwhile, the battery pack 10 according to the present disclosure may further include, in addition to the pack case 100 and the cell module 200, various devices for controlling charging and discharging the cell module 200, such as a BMS (Battery Management System), a current sensor, a fuse, and the like. As an example, the battery pack 10 according to the present disclosure can be used as a home battery pack. Further, at least one battery pack 10 according to the present disclosure can be provided as an energy source to configure an energy storage system (ESS).
While the invention has been particularly shown and described with reference to exemplary
embodiments thereof and the accompanying drawings, the present disclosure is not limited thereto,
and it will be understood by those skilled in the art that various changes in form and details may
be made therein, without departing from the spirit and scope of the invention as defined by the
appended claims and their equivalents.
Meanwhile, the terms representing directions such as the front side, the rear side, the left
side, the right side, the upper side, and the lower side have been used in embodiments of the present
disclosure, but it will be obvious to those skilled in the art that the terms used are provided simply
for convenience of description and may become different according to the position of an object,
the position of an observer, or the like.
[Description of Reference Numerals] 10: battery pack
100: pack case
150: guide protrusion
152: first protrusion
154: second protrusion
200: cell module
210: cell assembly
300: firefighting tank
400, 402, 404: end plate
410: first plate
420: second plate
500: connection part
510: first connection member
520: second connection member
Claims (16)
- [CLAIMS][Claim 1]A battery pack comprising:a pack case;a cell module provided inside the pack case and including a cell assembly having aplurality of battery cells;a firefighting tank disposed on an upper side of the cell assembly and holding a fireextinguishing agent in an internal space; andan end plate disposed on at least one of the front and rear sides of the cell assembly andconfigured to support the firefighting tank.
- [Claim 2]The battery pack according to claim 1, wherein:the end plates are disposed on both sides at the front and rear of the cell assembly, and areconfigured to press at least one of front and rear surfaces of the cell assembly when swelling ofthe battery cell occurs.
- [Claim 3]The battery pack according to claim 2, wherein:the firefighting tank is configured to discharge the fire extinguishing agent between bothsides of the bottom part toward the cell assembly when heat is applied from the cell assembly, andthe end plates support both sides of the bottom part of thefirefighting tank in a verticaldirection.
- [Claim 4]The battery pack according to claim 3, wherein:a fixing part having a predetermined area and making surface contact with both sides ofthe bottom part of the firefighting tank is provided on the upper side of the end plate.
- [Claim 5]The battery pack according to claim 4, wherein:the fixing part is bent from an upper end of the end plate and formed to extend to a predetermined length along an outside direction of the cell assembly.
- [Claim 6] The battery pack according to claim 5, wherein: the end plate comprises, a first plate disposed on the front surface of the cell assembly and supporting the front side of the firefighting tank in a vertical direction; and a second plate disposed on the rear surface of the cell assembly and supporting the rear side of the firefighting tank in the vertical direction.
- [Claim 7] The battery pack according to claim 6, wherein: the fixing part comprises a first fixing part that is formed to extend from the upper end of the first plate in the front/rear direction of the cell assembly, and is coupled to the front side of the firefighting tank in the vertical direction.
- [Claim 8] The battery pack according to claim 7, wherein: the first fixing part makes surface contact with the front side of the firefighting tank.
- [Claim 9] The battery pack according to claim 6, wherein: the fixing part further comprises a second fixing part that is formed to extend from the upper end of the second plate in the front/rear direction of the cell assembly, and is coupled to the rear side of the firefighting tank in the vertical direction.
- [Claim 10] The battery pack according to claim 9, wherein: the second fixing part makes surface contact with the rear side of the firefighting tank.
- [Claim 11] The battery pack according to claim 6, wherein: the pack case comprises a guide protrusion that is formed to protrude from the bottom part of the pack case in a vertical direction, and is provided apart from the front surface and the rear surface of the cell assembly at a specified interval in the front/rear direction of the cell assembly, and the guide protrusion is disposed on the opposite side of the cell assembly with the end plate interposed therebetween.
- [Claim 12]The battery pack according to claim 6, wherein:the guide protrusion comprises,a first protrusion formed apart from the front surface of the cell assembly at a specifiedinterval in the front/rear direction of the cell assembly; anda second protrusion formed apart from the rear surface of the cell assembly at a specifiedinterval in the front/rear direction of the cell assembly.
- [Claim 13]The battery pack according to claim 12, wherein:the first plate is disposed between the first protrusion and the front surface of the cellassembly in the front/rear direction of the cell assembly, and configured to press the front surfaceof the cell assembly when swelling of the battery cell occurs, andthe second plate is disposed between the second protrusion and the rear surface of thecell assembly in the front/rear direction of the cell assembly, and configured to press the rearsurface of the cell assembly when swelling of the battery cell occurs.
- [Claim 14]The battery pack according to claim 13,further comprising a connection part that connects the first plate and the second plate inthe front/rear direction of the cell assembly.
- [Claim 15]The battery pack according to claim 14, wherein:the connection part comprises,a first connection member that connects an upper end of the first plate and an upper endof the second plate in the front/rear direction of the cell assembly, and is disposed in plural numbers along a left/right direction of the cell assembly, and a second connection member that connects the lower end of the first plate and the lower end of the second plate in the front/rear direction of the cell assembly, and is disposed in plurality along the left/right direction of the cell assembly.
- [Claim 16]An energy storage system comprising at least one battery pack according to any one ofclaims I to 14.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2022-0030830 | 2022-03-11 | ||
KR1020220030830A KR20230133621A (en) | 2022-03-11 | 2022-03-11 | Battery pack and energy storage system including the same |
PCT/KR2023/001751 WO2023171917A1 (en) | 2022-03-11 | 2023-02-07 | Battery pack and energy storage system including same |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2023229665A1 true AU2023229665A1 (en) | 2024-07-18 |
Family
ID=87935620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2023229665A Pending AU2023229665A1 (en) | 2022-03-11 | 2023-02-07 | Battery pack and energy storage system including the same |
Country Status (3)
Country | Link |
---|---|
KR (1) | KR20230133621A (en) |
AU (1) | AU2023229665A1 (en) |
WO (1) | WO2023171917A1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8465866B2 (en) * | 2010-04-21 | 2013-06-18 | Samsung Sdi Co., Ltd. | Battery module including a pressure control unit |
JP2014506384A (en) * | 2010-12-27 | 2014-03-13 | ボルボ コンストラクション イクイップメント アーベー | Battery cover with fire extinguishing function |
KR101338290B1 (en) * | 2011-04-15 | 2013-12-09 | 주식회사 엘지화학 | Connecting Structure for Pack Cover and End Plate and Battery Pack Containing the Same |
JP5760713B2 (en) * | 2011-06-03 | 2015-08-12 | トヨタ自動車株式会社 | Battery pack |
EP4007043A4 (en) * | 2020-06-29 | 2023-09-06 | Lg Energy Solution, Ltd. | Battery module comprising heat dissipating member, and method for manufacturing heat dissipating member |
-
2022
- 2022-03-11 KR KR1020220030830A patent/KR20230133621A/en unknown
-
2023
- 2023-02-07 WO PCT/KR2023/001751 patent/WO2023171917A1/en active Application Filing
- 2023-02-07 AU AU2023229665A patent/AU2023229665A1/en active Pending
Also Published As
Publication number | Publication date |
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WO2023171917A1 (en) | 2023-09-14 |
KR20230133621A (en) | 2023-09-19 |
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CN117355984A (en) | Battery cell, battery module including the same, battery pack, and vehicle |
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Date | Code | Title | Description |
---|---|---|---|
DA3 | Amendments made section 104 |
Free format text: THE NATURE OF THE AMENDMENT IS: AMEND THE INVENTION TITLE TO READ BATTERY PACK AND ENERGY STORAGE SYSTEM INCLUDING THE SAME |